<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<style>
    * {
        margin: 0;
        padding: 0;
    }

    html,
    body {
        height: 100%;
    }

    #app {
        height: 100%;
        position: relative;
        background-color: rgba(0, 0, 0, .6);
    }

    .shopcart {
        position: fixed;
        bottom: 0;
        background-color: white;
        width: 100%;
        padding: 10px;
        box-sizing: border-box;
    }

    .shopcart .title {
        display: flex;
        justify-content: space-between;
        font-weight: bold;
    }

    .shopcart .list .good {
        display: flex;
        margin: 10px 0;
    }

    .shopcart .list .good .imgbox {
        width: 80px;
        margin-right: 10px;
    }

    .shopcart .list .good .imgbox img {
        width: 100%;
    }

    .shopcart .list .good .text {
        flex: 1;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
    }

    .shopcart .list .good .text .name {
        font-weight: bold;
    }

    .shopcart .list .good .text .price {
        display: flex;
        justify-content: space-between;
    }

    .shopcart .list .good .text .price span {
        display: inline-block;
        width: 14px;
        height: 14px;
        text-align: center;
        line-height: 14px;
        background-color: lightskyblue;
        color: white;
        border-radius: 50%;
    }

    .shopcart .list .good .text .price span:nth-child(2) {
        color: black;
        background-color: white;
    }

    .empty {
        text-align: center;
        padding: 50px;
    }
</style>

<body>
    <div id="app">
        <div class="shopcart">
            <div class="title">
                <span>已选商品</span>
                <span @click="clean">清空</span>
            </div>
            <div v-if="list.length!=0" class="list">
                <div v-for="(item,index) in list" :key="index" class="good">
                    <div class="imgbox">
                        <img :src="item.pic" alt="">
                    </div>
                    <div class="text">
                        <div class="name">{{item.name}}</div>

                        <div class="price">
                            <div>￥{{item.price}}</div>
                            <div>
                                <span @click="sub(item)">-</span>
                                <span>{{item.count}}</span>
                                <span @click="add(item)">+</span>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
            <div v-else class="empty">没有东西，快去买吧！</div>
        </div>
    </div>
</body>

</html>
<script src="vue.js"></script>
<script src="demo1.js"></script>